Pressure sensitive tape dispenser



June 5, 1951 w JOSSELYN 2,555,747

PRESSURE SENSITIVE TAPE DISPENSER Filed March 22, 1948 IE I E 4];

' INVENTOR. fiflhsar (vise/5M7 Patented June 5 1951 UNITED STATES PATENTOFFICE 5 Claims. 1

My invention relates to means for dispensing selected lengths ofadhesive tape or the like from provide means for facilitating theremoval of an adhesive tape from a package.

Another object of the invention is to provide means for affording aremoving tab on a strip of adhesive.

Another object of the invention is to provide means for selectivelyrendering non-adhesive, material which normally is adhesive.

A further object of the invention is to provide means that can beincorporated with the usual or customary type of dispenser for renderinga part of the dispensed material non-adhesive.

Another object of the invention is in general to improve adhesive tapeand adhesive tape dispensers.

Other objects of the invention, together with the foregoing, areattained in the embodiment of the invention, described in theaccompanying description and illustrated in the accompanying drawings inwhich Figure 1 is an isometric projection of a tape dispenser andaccompanying tape constructed and arranged in accordance with myinvention.

Figure 2 is a cross section on a median plane through a loaded tapedispenser constructed in accordance with my invention.

Figure 3 is an isometric projection of a section of tape which has beendispensed from the dispenser of Figures 1 and 2.

Figure 4 is a view in isometric projection showing a part of a packagehaving afiixed thereto a strip of tape in accordance with my invention.

Figure 5 is a cross section on a median plane through a portion of amodified form of dispenser constructed according to my invention.

In its preferred form, my adhesive tape has in general an adhesiveortacky surface, a portion of which however has been treated to precludeadhesion, preferably by the addition of a non-tacky substance such aschalk. My dis-- penser comprises a means for paying out a strip ofnormally tacky or adhesive tape and for affording (preferably adjacentthe normally provided, tape severing means) a supply of material,

for example a block of chalk, which when contacted with the adhesivetape will render it nonadhesive or non-tacky.

My invention has been successfully incorporated as shown in connectionwith a tape dispenser I, for example of the sort disclosed in PatentNumber 2,275,408, issued March 10, 1942, to C. C. Alliss. In accordancewith this patent, the structure includes a sheet metal framework havingside walls 8 and 9 between them serving as a support for a roll II ofadhesive tape. The tape can be of various kinds, and for example is acellulose-base tape wound upon a core designed so that its centralaperture permits the package I I of tape to revolve upon the supportingsidewalls. The framework I adjacent its forward portion is provided withan inwardly and upwardly inclined forward wall I2 bent into a horizontaltable I3 having a serrated forward edge I4. In normal use, a strip I6 oftape is led from the roll II over the table I3, to which it tends toadhere, and is drawn out generally horizontally in a main or firstpredetermined path by the user until the selected length has beenextended. The tape is then rather quickly moved downwardly into thedotted line position I8, shown in Figure l, and constituting a side orsecond predetermined path. The tape is sometimes simultaneously movedlaterally across the serrated edge I 4 so that the withdrawn tape issevered from the remaining portion and becomes a separate adhesivestrip.

In accordance with my invention, I provide means readily available fortreating the last part of the tape withdrawn from the roll in such amanner as to render it non-adhesive. For that purpose I affix on theframework 1, preferably between the upwardly inclined forward wall I2and the lower side of the table I3, a block of chalk 2| or comparablenon-adhesive material of a size extending substantially across the widthof the table I3 and terminating approximately in the plane oftermination of the serrated edge With this structure, as the user graspsthe normally extended tape I6 and moves it downwardly into its dottedline position I8, and tears it from the remaining roll, the terminalportion of the extending tape I8 is pressed against and wiped across thechalk block ZI. This leaves a light coating of chalk on the normallyadhesive under surface of the tape I8. For a space adjacent the end ofthe tape approximately equivalent in area to the block, the tape istreated so that it is non-adhesive.

As especially shown in Figure 3, a strip of tape on its under surfacethen comprises the normally tacky surface 22 but supplemented with anonadhesive or non-tacky surface 23 afforded by the light coating'ofchalk. When the tape, as shown in Figure 3, is applied to a package allof its surface can readily be adhered to the package except the area 23which has been chalked. Thisarea tends to remain in inclined orprojecting location so that it can readily be grasped by a subsequentuser and the tape can be detached. The amount of chalk in the block 2|is such as to last for the length of time that the tape on the dispenserlasts although it can readily be removed when worn and be replaced byanother adhesively secured chalk block when desired. I

It sometimes occurs that the tape does not adhere to the table I3 butrecoils into contact with the roll ll. Being tacky, the tape end adheresclosely to the roll and can be detached and again trained over the tableonly with difiiculty.

To avoid this annoyance, I provide a supplementary chalk block 24 (Fig.5) afiixed to the leading side of the wall 12 and affording asubstantial continuation of the table surface. In normal operation, theblock 24 does not contact the tape I6, but if the tape, in being severedor otherwise, is dislodged from the table, it is pressed against theleading chalk block 24. Being thereby rendered non tacky, the displacedend of the tape does not itself re-adhere to the roll H and consequentlyleaves a separate, projecting tab so that the tape can readily beretrained over the table in normal fashion.

I claim: I I

1. A tape dispenser comprising a frame adapted to hold adhesive tape fordispensing over a severing table in a main path and in a side path, anda block of chalk on said frame adjacent said table for contacting andrendering non-adhesive 4 tape passing over said table and dispensed insaid side path.

2. A tape dispenser comprising a frame adapted to hold adhesive tape fordispensing over a table in a main path and in a side path, and mean onsaid frame adjacent said tabl for contacting and applying a non-adhesivecoating to said tape passing over said table and dispensed in said sidepath.

3. A tape dispenser comprising a frame adapted to hold adhesive tape fordispensing over a table in a main path and in a side path, and means onsaid frame in said side path of tape being dispensed over said table fordepositing a non-adhesive coating on said tape being dispensed.

4;. A tape dispenser comprising a frame adapted to hold adhesive tapefor dispensing in two predetermined paths, means for applying anonadhesive coating to said tape, and means for disposing said applyingmeans on saidframe in a position to be engaged by said tape in the sec-0nd one of said. two predetermined paths.

5. A tape-dispenser comprising a frame adapted to hold adhesive tape fordispensing, said frame including a table having an edge and upper andlower surfaces, said tape passing over said edge and in contact withsaid upper surface as it is being dispensed, and a block of tape-coatingmaterial mounted on said frame adjacent said lower surface and said edgein one of several paths of said tape being dispensed.

WINSOR JOSSELYN.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number W Name Date 1,321,295 Duffy Nov. 1 1, 19191,327,420 Bro'gden Jan. 6, 1920 1,708,725 Huempfner Apr. 9, 19292,284,780 Vanhooser June 2, 1942

